linux-kernel - Re: [PATCH v2 08/11] drm/qxl: fix monitors object vmap

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Message-ID: <1743626e-d34d-8a7d-1b66-ae38f77c5ea5@suse.de>
Date:   Thu, 18 Feb 2021 15:42:38 +0100
From:   Thomas Zimmermann <tzimmermann@...e.de>
To:     Gerd Hoffmann <kraxel@...hat.com>, dri-devel@...ts.freedesktop.org
Cc:     David Airlie <airlied@...ux.ie>,
        open list <linux-kernel@...r.kernel.org>,
        "open list:DRM DRIVER FOR QXL VIRTUAL GPU" 
        <virtualization@...ts.linux-foundation.org>,
        "open list:DRM DRIVER FOR QXL VIRTUAL GPU" 
        <spice-devel@...ts.freedesktop.org>,
        Dave Airlie <airlied@...hat.com>
Subject: Re: [PATCH v2 08/11] drm/qxl: fix monitors object vmap



Am 17.02.21 um 13:32 schrieb Gerd Hoffmann:
> Use the correct vmap variant.  We don't hold a reservation here,
> so we can't use the _locked variant.  We can drop the pin because
> qxl_bo_vmap will do that for us.
> 
> Signed-off-by: Gerd Hoffmann <kraxel@...hat.com>

Acked-by: Thomas Zimmermann <tzimmermann@...e.de>

I simply forgot to ack this patch.

> ---
>   drivers/gpu/drm/qxl/qxl_display.c | 7 ++-----
>   1 file changed, 2 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c
> index bfcc93089a94..f106da917863 100644
> --- a/drivers/gpu/drm/qxl/qxl_display.c
> +++ b/drivers/gpu/drm/qxl/qxl_display.c
> @@ -1159,12 +1159,10 @@ int qxl_create_monitors_object(struct qxl_device *qdev)
>   	}
>   	qdev->monitors_config_bo = gem_to_qxl_bo(gobj);
>   
> -	ret = qxl_bo_pin(qdev->monitors_config_bo);
> +	ret = qxl_bo_vmap(qdev->monitors_config_bo, &map);
>   	if (ret)
>   		return ret;
>   
> -	qxl_bo_vmap_locked(qdev->monitors_config_bo, &map);
> -
>   	qdev->monitors_config = qdev->monitors_config_bo->kptr;
>   	qdev->ram_header->monitors_config =
>   		qxl_bo_physical_address(qdev, qdev->monitors_config_bo, 0);
> @@ -1189,8 +1187,7 @@ int qxl_destroy_monitors_object(struct qxl_device *qdev)
>   	qdev->monitors_config = NULL;
>   	qdev->ram_header->monitors_config = 0;
>   
> -	qxl_bo_vunmap_locked(qdev->monitors_config_bo);
> -	ret = qxl_bo_unpin(qdev->monitors_config_bo);
> +	ret = qxl_bo_vunmap(qdev->monitors_config_bo);
>   	if (ret)
>   		return ret;
>   
> 

-- 
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer



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